Asteroid 243 Ida

Asteroid 243 Ida

. A camera aboard the Galileo spacecraft captured this picture of the limb, or visible edge, of the S-type asteroid 243 Ida on 28 August 1993. Prominent in this view is a 2-kilometer deep valley seen in profile on the limb. Many small craters and some grooves are also seen on the surface, the scars of past collisions. (Courtesy of NASA and JPL.)

Copyright 2010, Professor Kenneth R. Lang, Tufts University